Dethatcher attachment for lawn mower

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With a dethatcher attachment for lawn mower, you can convert your mowing machine into a wonderful dethatching tool to keep your grass looking perfectly healthy throughout the year. 

Of course, this accessory will do a much better job than other dethatching equipment such as hand dethatching rakes because of the wider dethatching path.

We have prepared this guide to help you choose a dethatcher attachment for lawn mower to help you take charge of this essential lawn care task.

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We shall also be commenting on the question of how to time your dethatching task.

Read on.

Best dethatcher attachment for lawn mower: product reviews

Here we review the three dethatcher attachments we highly recommend.

These have been flying off the shelves because they knock out your dethatching task in no time.

Take a look:

1. Brinly DT-40BH Tow-Behind Dethatcher (40-Inch)

The Brinly DT-40BH tow behind dethatcher is a well-rounded attachment with impressive capability even on awfully thatched grass.

The 40 inches working width along with 2 rows comprising 10 spring steel tines (independently flexing) comb through your lawn pulling thatch out like a Ninja to promote the growth of a healthier root system.

Brinly DT-40BH is deeply coveted by owners for its 3 customizable settings.

You can, for instance, have it run as a pure Dethatcher (with tines combing the grass and flicking up the thatch) or switch to a more intensive mode.

In the latter, the tines scrape as well as scarify the soil whilst extracting thatch and is helpful when undertaking lawn re-seeding projects.

You can set the dethatcher to the transport mode for easier movement when crossing drives/walkways too.

The 14-gauge steel tray holds up to 70 lbs of additional weight like typical cinderblocks when necessary.

It’s a top, top pick for owners of small and medium-sized yards.


  • Long-lasting construction.
  • Easy engaging transportation wheels.
  • Tines come pre-assembled.
  • Universal hook-up.


  • Nothing alarming.

2. Agri-Fab 45-0295 Tine Tow Dethatcher(48-Inch)

This is a no-nonsense dethatcher model with the arsenal to rescue your grass from the thatch misery — and we trust Agri-Fab anyway.

It dislodges dead, matted grass in larger swathes (up to 48”) than Brinly DT-40BH and makes short work of enormous yards.

The 24 rust-proof heat-treated tines (replaceable) guarantees maximum thatch removal and durability while the two 7 inch. flat-free wheels bring effortless transport.

The other feature you will love is the cantilever transport handle – it makes the process of raising and lowering the tines quite straightforward.

Like with the Brinly DT-40BH dethatcher attachment, the weight tray can hold up to 70 lbs. extra load for comprehensive thatch uprooting.



  • Takes more storage space.

3. Agri-Fab 45-0294 Tine Tow Dethatcher (40-Inch)

This is perfect for anyone looking for a serious dethatcher without breaking the bank.

It once again features 20 tough spring tines (rust-proof and replaceable) and sinks into the ground bravely to grab and bring thatch, weeds, and soil to the surface.

It manages 40-inch wide swathes with each pass (same as the Brinly DT-40BH dethatcher attachment) and still features the cantilever transport handle used to ease the lifting/dropping of the tines in its sibling, the Agri-fab 45-0295 attachment.

Importantly, you can reach the lever easily from the mower seat- it’s that long.

The two semi-pneumatic wheels (7-inch diameter and 1-1/2 inches wide) will traverse any terrain with minimal struggle. 

A hitch pin (universal) accompanies the de-thatcher and you will get a 3-year warranty.


  • Pocket-friendly pricing.
  • Attaches to nearly all mowers, regardless of brand.
  • Lasts for years.
  • Dethatches excellently.


  • Assembly is a bit difficult.

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What is a dethatcher attachment for lawn mower

A dethatcher attachment is nothing else but a series of tines (vertically aligned) built to tear through overgrown thatch layer, loosen it, and pluck it out without injuring your grass.

The number of tines varies but most are treated to enhance durability and deliver optimum performance.

You raise/lower the tines using the built-in features such as a lever.

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Best tow behind dethatcher buying guide

To avoid blundering, it’s important to keep the following at the back of your mind when shopping for a dethatcher attachment:

·         Effectiveness

These tools do not stir up the dead turf and thatch with equal proficiency and you want a tool that’s thorough at dethatching and whose results become evident immediately.

Multiple depth settings are particularly useful here as you can customize a unit to dethatch more aggressively and get deeper when working on impenetrable thatch.

I suggest that you read the user reviews on the website to get an idea of each model’s ability before making a decision.

·         Ease of use

If you’re like me, you have no passion for garden tools that are just too much work to configure and operate.

Luckily, some of the attachments out there presently will take you just a few minutes to figure them out and are super easy to assemble and attach to your lawn tractor.

Additionally, dethatchers with easy-to-engage wheels roll smoothly and make your job out easier.

The other crucial thing to have is accessible controls.

·         Durability

To make it a worthy investment, you want many years of usage.

The quality of the used metals, the strength of the dethatching tines, and the wholesome engineering will give you a hint about its ability to hold up for many years.

·         Dethatching radius

Obviously, the bigger the swath it dethatches in a single pass, the lesser the time it will take to dethatch your yard.

You also expend reduced effort on the job.

Accordingly, select dethatchers with the largest path if you own an expansive property or if you will be providing dethatcher rental services (some clients could own vast lawns).

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How to connect a dethatcher attachment for lawn mower

Some lawn mower models come with innovative mechanisms such as a bracket or hooks to allow you to mount the attachment to the back of the mower depending on the job you want to accomplish. 

Some even offer a universal hitch pin and they are really simple to connect.

There are those requiring a couple of modifications (such as drilling some holes) including some dethatcher attachment for walk behind mowers to work but the good news is that it’s not complicated.

Be sure to attach the tool to your mower securely before getting down to work.

As you are aware, it’s easier for sunlight, water, and nutrients to seep down to the grassroots after the removal of the thatch buildup and your lawn will grow richly.

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And you now perfectly understand how to pick an ideal dethatcher attachment for your mower to help you complete the task without exerting too much physical effort.

That being said, it’s important that you dethatch at the most appropriate time for the best outcome.

In most cases, this should be when the grass is actively growing (in the mid-summer, early spring, and early fall depending on your type of grass).

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